In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil

doi:10.1016/j.jclepro.2021.127005

	In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil
	Munir, Mehr Ahmed Mujtaba 1,2; Yousaf, Balal 3; Ali, Muhammad Ubaid 4,5; Dan, Chen 1,2; Abbas, Qumber 3; Arif, Muhammad 6,7; Yang, Xiaoe 1,2
刊名	JOURNAL OF CLEANER PRODUCTION
	2021-06-15
卷号	302 页码:15
关键词	Modified-biochar Microplastic Heavy metals Spectroscopic investigation
ISSN号	0959-6526
DOI	10.1016/j.jclepro.2021.127005
通讯作者	Yang, Xiaoe(xeyang@zju.edu.cn)
英文摘要	Careful designing of biochar (BC) employing biological and industrial waste materials has gained much attention to improve soil health via reducing the bioavailability of heavy metals (HMs) in the contaminated-soil. Herein, a forty-day pot experiment was conducted to explore the influence of micro plastic (MP) embedded sewage-sludge (SS). The effects of SS and MP dosage ratios (0e15%) on the physicochemical properties of the modified-biochars were also studied with slow-pyrolyzed (SBC-500 degrees C) and flash-pyrolyzed biochar (FSBC-70 0 degrees C). Our investigations found remarkable positive synergistic effects for the SBC-15% involving increased soil pH, CEC, high carbon contents, and alleviation in Cr and Pb leaching than control and FSBC-70 0 degrees C. Besides, SBC-15% containing high carbon functional groups can effectively mitigate the Cr and Pb availability stress by intensifying the adsorption or passivation in the amended-soil, thereby, significantly reducing the Cr and Pb EDTA-extractable contents. Chemical fractionation analyses further confirmed that SBC-15% addition was more helpful for Cr and Pb immobilization and ultimately reducing transfer-rate, bioconcentration-factor, and translocation-factor as compared to FSBC-15% and control due to its higher alkalinity, surface area/porosity, and available carbon functional groups. The maize biomass (root and shoot) increased by more than 50%, and the activities of soil enzymes such as urease, alkaline phosphatase, and glucosidase enzyme activities were also enhanced. This ecologically feasible strategy would pave an efficient way to make full use of the SS and MP for the biochar synthesis with excellent soil remediation performance. (C) 2021 Elsevier Ltd. All rights reserved.
资助项目	Tobacco Science and Technology Bureau of Yunnan Province[2020530000241006] ; Zhejiang Science and Technology Bureau[2018C02029] ; National Natural Science Foundation of China[31872956] ; Fundamental Research Funds for the Central Universities
WOS关键词	AL-MODIFIED BIOCHAR ; HEAVY-METALS ; SIMULTANEOUS REMOVAL ; STRAW BIOCHAR ; IMMOBILIZATION ; WASTE ; PHOSPHATE ; SORPTION ; LEAD ; MECHANISMS
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000647766700017
资助机构	Tobacco Science and Technology Bureau of Yunnan Province ; Zhejiang Science and Technology Bureau ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16412]
专题	中国科学院地球环境研究所地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Yang, Xiaoe
作者单位	1.Zhejiang Univ, Inst Crop Sci, Coll Environm & Resources Sci, Minist Educ MOE,Key Lab Environm Remediat & Ecosy, Hangzhou 310058, Peoples R China 2.Zhejiang Univ, Zhejiang Key Lab Crop Germplasm, Hangzhou 310058, Peoples R China 3.Middle East Tech Univ, Environm Engn Dept, TR-06800 Ankara, Turkey 4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518000, Peoples R China 5.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518000, Peoples R China 6.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 7.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Munir, Mehr Ahmed Mujtaba,Yousaf, Balal,Ali, Muhammad Ubaid,et al. In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil[J]. JOURNAL OF CLEANER PRODUCTION,2021,302:15.
APA	Munir, Mehr Ahmed Mujtaba.,Yousaf, Balal.,Ali, Muhammad Ubaid.,Dan, Chen.,Abbas, Qumber.,...&Yang, Xiaoe.(2021).In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil.JOURNAL OF CLEANER PRODUCTION,302,15.
MLA	Munir, Mehr Ahmed Mujtaba,et al."In situ synthesis of micro-plastics embedded sewage-sludge co-pyrolyzed biochar: Implications for the remediation of Cr and Pb availability and enzymatic activities from the contaminated soil".JOURNAL OF CLEANER PRODUCTION 302(2021):15.